class Monad{

    funcs = []
    objects = []

    constructor(objects, funcs){
        super();
        this.objects = objects;
        this.funcs = funcs;        
    }

    add(func){
        this.funcs.push(func);
        return this.funcs;
    }

    apply(){
        let result = null;
        for (const func of this.funcs) {
            result = func(result ?? this.objects)
        }
        return result;
    }

}

module.exports = { Monad }